Patent · US Active

Coating materials containing particles with protected isocyanate groups

US8008370B2 · kind B2 · utility

0Cited by

9References

22Claims

0Family size

Assignee

Wacker Chemie AG · DE

Inventors

Juergen Pfeiffer · Mehring, DE
Volker Stanjek · Ampfing, DE
Torsten Gottschalk-Gaudig · Burghausen, DE

Key dates

Filing date	Feb 2, 2006
Grant date	Aug 30, 2011
Priority date	—
Expiry date	Apr 16, 2027

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08L83/04
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Coating formulations especially useful for topcoat and clearcoat applications contains an isocyanate-reactive resin, a blocked isocyanate curative, and particles which bear blocked isocyanate functionalities, a considerable portion of which unblock at a temperature lower than the unblocking temperature of the curative. As a result, the coatings exhibit improved scratch resistance.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.